If a maximum heap size of 1.8GB or greater is entered in the Macromedia ColdFusion MX Administrator's Java/JVM Settings page and the change is submitted, you will receive a message stating the server must be restarted in order for the change to take effect. The attempt to restart the server will fail and the following message will be displayed:
Windows could not start the ColdFusion MX Application Server on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 2.
There has been an error starting ColdFusion MX, please check the logs.
The following error is logged (Windows:cf_root\runtime\logs\default-out.log; Unix:cf_root/cfserver.log)
Error occurred during initialization of VM Could not reserve enough space for object heap
On 32-bit processor machines, the largest contiguous memory address space the operating system can allocate to a process is 1.8GB. Because of this, the maximum heap size can only be set up to 1.8GB. On 64-bit processor machines, the 1.8 GB limit does not apply, as 64-bit processor machines have a larger memory address space.
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